feat(security,ui): self-host React deps, Tailwind, fonts; strict CSP; local QR; better selection state

Replace CDN React/ReactDOM/Babel with local libs; remove Babel and inline scripts
Build Tailwind locally, add safelist; switch to assets/tailwind.css
Self-host Font Awesome and Inter (CSS + woff2); remove external font CDNs
Implement strict CSP (no unsafe-inline/eval; scripts/styles/fonts from self)
Extract inline handlers; move PWA scripts to external files
Add local QR code generation (qrcode lib) and remove api.qrserver.com
Improve SessionTypeSelector visual selection (highlighted background and ring)
Keep PWA working with service worker and offline assets
Refs: CSP hardening, offline-first, no external dependencies

node_modules/yargs/locales/fr.json

@@ -0,0 +1,53 @@
+{
+  "Commands:": "Commandes :",
+  "Options:": "Options :",
+  "Examples:": "Exemples :",
+  "boolean": "booléen",
+  "count": "compteur",
+  "string": "chaîne de caractères",
+  "number": "nombre",
+  "array": "tableau",
+  "required": "requis",
+  "default": "défaut",
+  "default:": "défaut :",
+  "choices:": "choix :",
+  "aliases:": "alias :",
+  "generated-value": "valeur générée",
+  "Not enough non-option arguments: got %s, need at least %s": {
+    "one": "Pas assez d'arguments (hors options) : reçu %s, besoin d'au moins %s",
+    "other": "Pas assez d'arguments (hors options) : reçus %s, besoin d'au moins %s"
+  },
+  "Too many non-option arguments: got %s, maximum of %s": {
+    "one": "Trop d'arguments (hors options) : reçu %s, maximum de %s",
+    "other": "Trop d'arguments (hors options) : reçus %s, maximum de %s"
+  },
+  "Missing argument value: %s": {
+    "one": "Argument manquant : %s",
+    "other": "Arguments manquants : %s"
+  },
+  "Missing required argument: %s": {
+    "one": "Argument requis manquant : %s",
+    "other": "Arguments requis manquants : %s"
+  },
+  "Unknown argument: %s": {
+    "one": "Argument inconnu : %s",
+    "other": "Arguments inconnus : %s"
+  },
+  "Unknown command: %s": {
+    "one": "Commande inconnue : %s",
+    "other": "Commandes inconnues : %s"
+  },
+  "Invalid values:": "Valeurs invalides :",
+  "Argument: %s, Given: %s, Choices: %s": "Argument : %s, donné : %s, choix : %s",
+  "Argument check failed: %s": "Echec de la vérification de l'argument : %s",
+  "Implications failed:": "Arguments dépendants manquants :",
+  "Not enough arguments following: %s": "Pas assez d'arguments après : %s",
+  "Invalid JSON config file: %s": "Fichier de configuration JSON invalide : %s",
+  "Path to JSON config file": "Chemin du fichier de configuration JSON",
+  "Show help": "Affiche l'aide",
+  "Show version number": "Affiche le numéro de version",
+  "Did you mean %s?": "Vouliez-vous dire %s ?",
+  "Arguments %s and %s are mutually exclusive" : "Les arguments %s et %s sont mutuellement exclusifs",
+  "Positionals:": "Arguments positionnels :",
+  "command": "commande"
+}